If you tried to make the payment with AMEX, they have probably placed a hold on your card for the amount, but it will come off in a day or so after everything processes. If that's not the case, and you can see a charge for AMEX after several days we’ll need a screenshot of the details of the charge (without your card info of course) so we can reach out to our credit card processor to further assist you.
Did you Add an Item at Checkout?
We offer additional items for sale at checkout. If you chose one of these items, the amount will be processed separately from the rest of your order. This will result in two charges that total the amount of the one charge you were expecting.